CODEWITHSUNDEEP
asp.netjquerydom
TheBoubou
TheBoubou

Reputation: 19903

jQuery, string manipulation : find a tag

After a post with "$.ajax()", I sometimes receive an exception from the server. You can see a part of the returned HTML below:

<html>
<head>
  <title>MyMessage</title>
  <style>
    /* ... */
  </style>
</head>

<body bgcolor="white">  
  <span>
    <H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1>
    <h2> <i>MyMessage</i> </h2>
  </span>
  <b> Exception Details: </b>System.Exception: MyMessage<br><br>
  <!-- ... -->

  [Exception: MyMessage]
    lambda_method(ExecutionScope , ControllerBase , Object[] ) +159
    ...
 </body>
 </html>

I'd like to get the value of the title tag ("MyMessage") How can I do this with jQuery?

Upvotes: 2

Views: 1129

Answers (1)

Sampson
Sampson

Reputation: 268364

In short, I don't think you can. jQuery only allows you to select tags that can be placed within a div tag. Your title tag doesn't qualify.

See this answer for more information.

Other options...

Partial HTML:
There are other options. You could return partial HTML whenever you experience an error. Instead of <html><body><p>Error</p></body></html> you return <p>Error</p>.

JSON:
You could also go with something a bit cleaner, like JSON. Since you're working with ajax anything, you could send back the following string:

{'status':'failed','message':'Something bad happened'}

And then access the 'message' value within your client-side script.

Proxy Script:
By using a proxy script written in either C# or PHP you can get access to the value of a title field, and return that to your jQuery ajax process.

IFrame Method:
Load the results up in an iframe, and then get the value through iframe.document.title. You can make your iframe 1x1, so it's not visible.

Upvotes: 4

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